The nearest known star is Proxima Centauri, which is 4,234 light years (40 trillion kilometers) away. It's a red dwarf star, and there is some controversy whether it is in orbit around the second and third nearest stars, Alpha and Beta Centauri, or whether it is just passing through. If it is in orbit, the period will be at least half a million years.

Red dwarfs are very hard to see, even with infrared telescopes, and none of them can be seen from Earth, with the naked eye. It is still possible, though unlikely, that there are other red dwarf stars even closer, waiting to be discovered.

William is correct Proxima Centauri is the closest star to earth after the Sun or Sol.

At the moment it takes a rocket 9 months to get to mars and at that speed it would take a long time to reach Proxima Centauri. Even if we invented a space ship capable of travelling at 10% of the Speed of light it would still take 40 years to get there.

what should i do? walk away? fight it?i am torn apart between what i know and what i dream of?i am 21 and recently got over a relationship and a girl in my class who recently had a split with her guy of 3 years became...

My son thinks so, and now I'm beginning to think it could be true - has this theory already been considered? I mean, it's impossible to know what the sun is really made of...all we know for sure, is that its still...

Recent studies reveal that human beings actually had originated somewhere in a distant planet near Alpha Centauri. They're damn sure that biological life could not have been a product of this planet earth, but some...